JP5319052B2 - Textile treatment agent - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fiber-treating agent dyeing a fiber again to a desired color while simultaneously removing the color of the fiber dyed by an oxidation dye; and to provide a fiber-treating method using the agent. <P>SOLUTION: The fiber-treating agent is prepared by mixing (a) a hair-treating first agent containing an oxidation dye-reducing agent as an essential component, and (b) a hair-treating second agent containing a direct dye as an essential component. Preferably, the oxidation dye-reducing agent (a) is at least one kind selected from the group consisting of ascorbic acids, hydroxymethanesulfinic acids, thioglycolic acids, cysteines, sulfites and thiosulfates. <P>COPYRIGHT: (C)2007,JPO&amp;INPIT

Description

The present invention relates to a fiber treatment agent, more particularly while removing the color tone of hair dyed with oxidation dyes, at the same time about the desired fiber treatment agent which can be dyed again shades.

DESCRIPTION OF RELATED ART Conventionally, the destaining agent which removes the color tone of the fiber (for example, hair) dye | stained with the oxidation dye is known (for example, refer patent document 1). A reducing agent such as ascorbic acid is blended with this type of decoloring agent from the viewpoint that a polynuclear compound having a low polymerization rate can be easily depolymerized or resonated. According to such a decoloring agent, a polynuclear compound that dyes hair, that is, a polynuclear compound that is produced by oxidative polymerization of an oxidative dye, is depolymerized or non-resonated, so that On the other hand, a destaining process is performed.
JP 2004-149483 A

  By the way, in the above-mentioned prior art, when the dyed hair is destained with a decoloring agent and then re-dyed to another color tone, a hair dyeing treatment with an oxidative dye or the like is separately required. As described above, it has been extremely troublesome to separately perform a destaining process using a destaining agent and a new hair dyeing process after the destaining process. Therefore, there has been a demand for a fiber treatment agent that can easily and quickly perform a destaining process and a hair dyeing process on dyed hair.

The present invention has been made by paying attention to the fact that various oxidative dye reducing agents such as ascorbic acids have no direct influence on the dye as a result of the intensive studies of the present inventors. The object is to provide a fiber treatment agent that can remove the color tone of the fiber dyed with the oxidative dye and simultaneously re-dye to the desired color tone.

In order to achieve the above object, the fiber treatment agent of the invention according to claim 1 is a fiber treatment agent applied to fibers dyed by color development of a polynuclear compound produced by oxidative polymerization of an oxidative dye, (A) ascorbic acid as an oxidative dye reducing agent and (b) an acid dye as a direct dye, wherein the ascorbic acid includes ascorbic acid and its salt, erythorbic acid and its salt, ascorbic acid sulfate disodium salt, erythorbic acid Disodium sulfate, magnesium ascorbate phosphate, ascorbyl palmitate, ascorbyl stearate, ascorbyl dipalmitate, ascorbyl tetra-2-hexyldecanoate, ascorbyl myristate, ascorbyl laurate, ascorbyl acetate, ascorbyl propionate, tartar Ascorbyl, Ascorbyl citrate, Ascorbyl succinate, Ascorbyl benzoate, (Ascorbyl / tocopheryl) potassium phosphate, Ascorbyl ethyl, Ascorbyl allantoin, Ascorbic acid chitosan, Ascorbic acid methylsilanol, Tetradecylhexyl ascorbyl, Aminopropyl ascorbyl phosphate, Ascorbic acid polypeptide, ascorbyl glucoside, and at least one selected from ascorbylmethylsilanol pectinate, (a) a fiber treatment first agent containing an oxidizing dye reducing agent, and (b) a fiber containing a direct dye processing becomes more second agents, in a fiber treatment agent, and summarized in that a said (a) contains 1-40% by weight of oxidation dye reducing agent.

The fiber treatment agent of the invention described in claim 2 is characterized in that, in the invention described in claim 1, (c) a fiber penetrant is further contained.
The fiber treatment agent of the invention described in claim 3 is summarized in that, in the invention described in claim 2 , the (c) fiber penetrant is an aromatic alcohol.

The fiber treatment agent of the invention according to claim 4 is the gist of the invention according to claim 2 or claim 3 , wherein the (c) fiber penetrant is at least one of benzyl alcohol and benzyloxyethanol. To do.

The fiber treatment agent of the invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the pH during mixing of the fiber treatment first agent and the fiber treatment second agent is It is summarized as 1 to 5 .

According to the fiber treatment agent of the present invention, it is possible to remove the color tone of the fiber dyed with the oxidative dye and at the same time re-dye to the desired color tone.

Hereinafter, an embodiment in which the fiber treatment agent of the present invention is embodied as a hair treatment agent will be described.
The fiber treatment agent of the present embodiment (hereinafter referred to as a hair treatment agent) contains a hair treatment first agent containing a powdered oxidative dye reducing agent as component (a) and a direct dye as component (b). The hair treatment second agent is applied to the hair as a mixture prepared by mixing these hair treatment first agent and hair treatment second agent. The mixture (hair treatment agent) of the hair treatment first agent and the hair treatment second agent is applied to hair that has been subjected to hair dyeing treatment by the action effect of the oxidation dye. Below, the hair treatment 1st agent and the hair treatment 2nd agent which comprise the hair treatment agent of this embodiment are demonstrated sequentially.

<Hair treatment first agent>
The first hair treatment agent in this embodiment contains (a) an oxidative dye reducing agent as an essential component. This (a) oxidative dye reducing agent is dyed by depolymerizing or non-resonating a polynuclear compound that dyes hair (in this embodiment, a polynuclear compound produced by oxidative polymerization of an oxidative dye). It is contained in order to give a decoloring treatment to the finished hair. This type of (a) oxidative dye reducing agent is selected, for example, from the group consisting of ascorbic acids, hydroxymethanesulfinic acids, thioglycolic acids, cysteines, sulfites and thiosulfates.

  Specific examples of ascorbic acids include ascorbic acid, erythorbic acid, and salts and derivatives thereof. Specific examples of ascorbate and erythorbate include sodium ascorbate, potassium ascorbate, calcium ascorbate, ammonium ascorbate, monoethanolamine ascorbate, diethanolamine ascorbate, and sodium erythorbate. Specific examples of ascorbic acid derivatives and erythorbic acid derivatives include, for example, ascorbic acid sulfate disodium, erythorbic acid sulfate disodium, ascorbic acid phosphate magnesium, ascorbyl palmitate, ascorbyl stearate, ascorbyl dipalmitate, tetra Ascorbyl 2-hexyldecanoate, Ascorbyl myristate, Ascorbyl laurate, Ascorbyl acetate, Ascorbyl propionate, Ascorbyl tartrate, Ascorbyl citrate, Ascorbyl succinate, Ascorbyl benzoate, (Ascorbyl / tocopheryl) potassium phosphate, Ascorbyl acid, Ascorbic acid Allantoin, chitosan ascorbate, methylsilanol ascorbate, tetradecylhexyl as Ascorbyl, aminopropyl ascorbyl phosphate, ascorbic acid poly peptides, ascorbyl glucoside, and the like ascorbyl methylsilanol pectinate, and the like. Moreover, hydroxymethanesulfinic acid salt is mentioned as hydroxymethanesulfinic acid. Specific examples of this hydroxymethanesulfinate include sodium hydroxymethanesulfinate and the like.

  Specific examples of thioglycolic acids include, for example, thioglycolic acid, thioglycolic acid salts, and esters of thioglycolic acid. Examples of the thioglycolate include ammonium thioglycolate and sodium thioglycolate. Examples of esters of thioglycolic acid include glycerin thioglycolate.

  Specific examples of cysteines include cysteine, cysteine hydrochloride, N-acetyl-L-cysteine and the like. Specific examples of the sulfite include sulfite, ammonium sulfite, sodium sulfite and the like. Specific examples of the thiosulfate include thiosulfuric acid and sodium thiosulfate.

  These (a) oxidation dye reducing agents may be blended singly or in combination of two or more. Among these (a) oxidative dye reducing agents, ascorbic acids are preferable, and ascorbic acid is particularly preferable from the viewpoint of being particularly excellent in the action of depolymerizing or deresonating a polynuclear compound having a low polymerization rate.

  The content of the (a) oxidative dye reducing agent in the hair treatment agent is preferably 1 to 40% by mass, particularly preferably 2 to 30% by mass. (A) When the content of the oxidizing dye reducing agent is less than 1% by mass, there is a high possibility that a sufficient decoloring effect cannot be obtained. On the other hand, when the content of the oxidative dye reducing agent exceeds 40% by mass, the solubility in the hair treatment agent may be lowered.

  Further, in the first hair treatment agent of this embodiment, fumaric acid, reducing sugar (preferably xylose), a dispersing agent and the like may be blended as other components. Fumaric acid and reducing sugar are blended in order to suppress reoxidation of components generated by depolymerization or non-resonance of a polynuclear compound having a low polymerization rate, and to suppress recoloration of hair. The dispersant suppresses the formation of the lump state by aggregation of the (a) oxidative dye reducing agent, and improves the dispersibility of both of the first hair treatment agent and the second hair treatment agent. Is formulated for. Specific examples of this type of dispersant include stearic acid metal salts such as calcium stearate and magnesium stearate, talc, crystalline cellulose, low-substituted hydroxypropylcellulose, and dextrin.

<Hair treatment second agent>
The second hair treatment agent in the present embodiment contains (b) a direct dye as an essential component. (B) The direct dye is blended in order to newly dye the hair after the destaining treatment into a predetermined color tone. This (b) direct dye is non-reactive and can be colored by itself. (B) Specific examples of direct dyes include acid dyes, nitro dyes, basic dyes (cationic dyes), and disperse dyes.

  Specific examples of the acid dye include, for example, Red No. 2, Red No. 3, Red No. 102, Red No. 104, Red No. 105, Red No. 106, Red No. 201, Red No. 227, Red No. 230, Red No. 232, Red 401, Red 403, Red 502, Red 503, Red 504, Red 506, Orange 205, Orange 206, Orange 207, Yellow 4, Yellow 5, Yellow 202, Yellow 203 No., Yellow No. 402, Yellow No. 403, Yellow No. 406, Yellow No. 407, Green No. 3, Green No. 201, Green No. 204, Green No. 205, Green No. 401, Green No. 402, Blue No. 1, Blue No. 2, Blue 202, Blue 205, Purple 401, Black 401, Acid Blue 1, Acid Blue 3, Acid Blue 62, Acid Black 52, Acid Brown 13, Acid Glee 50, Acid Orange 6, Acid Red 14, Acid Red 35, Acid Red 73, Acid Red 184, Brilliant Black 1, and the like.

  Specific examples of the nitro dye include, for example, 4-nitro-o-phenylenediamine, 2-nitro-p-phenylenediamine, 2-amino-4-nitrophenol, 2-amino-5-nitrophenol, picramic acid, and picrine. Acids and their salts, HC Blue No. 2, HC Blue No. 2 4, HC Blue No. 4 5, HC Blue No. 5 6, HC Blue No. 8, HC Blue No. 9, HC Blue No. 9 10, HC Blue No. 11, HC Blue No. 12, HC Blue No. 13, HC Blue No. 14, HC Brown No. 1, HC Brown No. 1 2, HC Green No. 2 1, HC Orange No. 1 1, HC Orange No. 1 2, HC Orange No. 2 3, HC Orange No. 5, HC Red No. 5 1, HC Red No. 1 3, HC Red No. 3 7, HC Red No. 7 8, HC Red No. 8 9, HC Red No. 9 10, HC Red No. 10 11, HC Red No. 11 13, HC Red No. 14, HC Violet No. 1, HC Violet No. 2, HC Yellow No. 4, HC Yellow No. 4 5, HC Yellow No. 6, HC Yellow No. 7, HC Yellow No. 8, HC Yellow No. 9, HC Yellow No. 9 10, HC Yellow No. 11, HC Yellow No. 12, HC Yellow No. 13, HC Yellow No. 14, HC Yellow No. 15 etc. are mentioned.

  Specific examples of the basic dye include, for example, Red No. 213, Red No. 214, Basic Blue 3, Basic Blue 6, Basic Blue 7, Basic Blue 9, Basic Blue 26, Basic Blue 41, Basic Blue 99, and Basic Blue 99. Basic Brown 16, Basic Brown 17, Basic Brown 1, Basic Brown 4, Basic Orange 1, Basic Orange 2, Basic Red 1, Basic Red 2, Basic Red 22, Basic Red 46, Basic Red 46, Basic Red 46, Basic Red Violet 1, Basic Violet 3, Basic Violet , Basic Violet 10, Basic Violet 11: 1, Basic Violet 14, Basic Violet 16, BASIC Yellow 11, BASIC Yellow 28, BASIC Yellow 57 and the like.

  Specific examples of disperse dyes include, for example, Disperse Black 9, Disperse Blue 1, Disperse Blue 3, Disperse Blue 7, Disperse Brown 4, Disperse Orange 3, Disperse Red 3, Disperse Red 3, Disperse Red 3, Disperse Red 3, Disperse Red 3, Disperse Red 3, Disperse Red 3, Disperse Violet 4, Disperse Violet 15, etc. are mentioned.

  In addition, as other (b) direct dyes, 1-amino-4-methylanthraquinone, 1,4-diaminoanthraquinone, and salts thereof, and “Ministerial Ordinance for Determining Tar Dyes that can be Used for Pharmaceuticals” ( Direct dyes determined by the Showa 41 (Ministry of Health and Welfare). These (b) direct dyes may be blended singly or in combination of two or more. Among these (b) direct dyes, in the present embodiment, acidic dyes are preferable from the viewpoint of exhibiting a hair dyeing effect at a predetermined pH (acidic region).

  0.001-5 mass% is preferable and, as for content of (b) direct dye in a hair treatment agent, 0.01-3 mass% is especially preferable. (B) When the content of the direct dye is less than 0.001% by mass, there is a high possibility that a sufficient hair dyeing effect cannot be obtained. On the other hand, when the content of (b) the direct dye exceeds 5% by mass, the solubility in the hair treatment agent is likely to be lowered. In addition, no further effect is seen with respect to the hair dyeing effect, which is a waste of material and is not economical.

  Further, in the second hair treatment agent of this embodiment, (c) a fiber penetrant, water, a water-soluble polymer compound, a pH adjuster, a surfactant, an oil component, a polyhydric alcohol, etc. are appropriately used as other components. You may mix | blend. In addition, since the fiber treatment agent is used as the hair treatment agent in the present embodiment as described above, the fiber penetration agent is hereinafter referred to as “hair penetration agent”.

  The hair penetrant as component (c) is preferably blended in order to improve the penetrability of (a) the oxidative dye reducing agent and (b) the direct dye into the hair. Specific examples of this type of (c) hair penetrant include aromatic alcohols such as benzyl alcohol, benzyloxyethanol, 2-phenoxyethanol, phenethylethanol, and phenylethanol, as well as methanol, ethanol, propanol, isopropanol, butanol, And lower alcohols such as isobutanol. These (c) hair penetrants may be blended singly or in combination of two or more. Among these, aromatic alcohol is preferable from the viewpoint that (b) sufficient penetrability of the direct dye into hair can be ensured, and at least one of benzyl alcohol and benzyloxyethanol is more easily available. Particularly preferred.

  The content of the (c) hair penetrating agent in the hair treatment agent is preferably 0.5 to 50% by mass, particularly preferably 1 to 40% by mass. (C) When the content of the hair penetrating agent is less than 0.5% by mass, the hair penetration promoting effect of the direct dye may not be obtained. On the other hand, if it exceeds 50% by mass, the feel of the hair may be reduced. In addition, the stability of the liquid preparation may be deteriorated.

  Water is blended as a solubilizer for the above (b) direct dye. The water-soluble polymer compound is blended to impart an appropriate viscosity to the hair treatment agent. Specific examples of this type of water-soluble polymer compound include xanthan gum, hydroxyalkyl xanthan gum, gum arabic, carrageenan, galactan, guar gum, quince seed gum, locust bean gum, tragacanth gum, pectin, mannan, starch, dextran, hyaluronic acid, Natural polymers such as curdlan, succinoglucan, gelatin, collagen, casein, albumin, cellulosic polymers such as methylcellulose, ethylcellulose, hydroxyethylcellulose, sodium carboxymethylcellulose, hydroxypropylmethylcellulose, carboxymethyl starch, methyl starch, soluble starch Starch polymers such as alginates and alginic acid polymers such as propylene glycol alginate Semi-synthetic polymer, carboxyvinyl polymer, polyvinyl alcohol, polyvinyl pyrrolidone, polyvinyl methyl ether, sodium polyacrylate, polyethylene oxide, ethylene oxide / propylene oxide block copolymer, polyacrylamide, acrylamide / acrylamide-2-methylpropanesulfonic acid Examples include synthetic polymers such as copolymers, and inorganic polymers such as bentonite and laponite. These water-soluble polymer compounds may be blended singly or in combination of two or more. Among these, xanthan gum is preferable from the viewpoint that an appropriate viscosity can be easily imparted to the hair treatment agent.

  The pH adjuster is blended to adjust the pH of the hair treatment agent. Examples of this type of pH adjuster include lactic acid, acetic acid, tartaric acid, citric acid, oxalic acid, phosphoric acid, hydrochloric acid, 2-amino-2-methyl-1-propanol, and the like. Among these, lactic acid is preferable from the viewpoint of easy adjustment of the pH of the hair treatment agent.

  The pH of the hair treatment agent in this embodiment is appropriately set depending on the type of (b) direct dye used. For example, (b) when an acid dye is used as the direct dye, it is preferable to adjust the pH to 1 to 5 and to adjust to 2 to 4.5 so that the action effect of the acid dye is suitably exhibited. Is particularly preferred. If the pH is lower than 1, the hair and scalp may be damaged. On the other hand, if the pH is higher than 5, (b) the hair dyeing effect of the acid dye as the direct dye may be reduced.

  The surfactant is blended to improve the stability of the second hair treatment agent and to give the hair a moist feeling. Examples of the surfactant include nonionic surfactants, cationic surfactants, anionic surfactants, and amphoteric surfactants. Specific examples of nonionic surfactants include polyoxyethylene (hereinafter referred to as POE) alkyl ethers, POE alkylphenyl ethers, POE / polyoxypropylene (hereinafter referred to as POP) alkyl ethers, and POE sorbitan fatty acid esters. And POE propylene glycol fatty acid ester. Specific examples of POE alkyl ethers include POE lauryl ether, POE cetyl ether, POE stearyl ether, and POE behenyl ether.

  Specific examples of the cationic surfactant include lauryl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, alkyl trimethyl ammonium chloride, distearyl dimethyl ammonium chloride, cetyl trimethyl ammonium bromide, stearyl trimethyl ammonium bromide, ethyl lanolin sulfate fatty acid aminopropyl Examples thereof include ethyldimethylammonium, stearyltrimethylammonium saccharin, cetyltrimethylammonium saccharin and the like. Specific examples of anionic surfactants include sodium lauryl sulfate, POE sodium lauryl ether sulfate, sodium stearoylmethyl taurate, triethanolamine dodecylbenzenesulfonate, sodium tetradecenesulfonate, POE lauryl ether phosphate, and salts thereof. Can be mentioned. Specific examples of the amphoteric surfactant include 2-undecyl-N, N, N- (hydroxyethylcarboxymethyl) -2-imidazoline sodium, cocoamidopropyl betaine, lauryldimethylaminoacetic acid betaine and the like. These surfactants may be blended singly or in combination of two or more. Among these, a nonionic surfactant is preferable from the viewpoint that it is easy to improve the stability of the second hair treatment agent.

  The oil component is blended so as to form a stable emulsified state and to give the hair a moist feeling. Specific examples of this type of oil component include hydrocarbons, fats and oils, waxes, higher fatty acids, alkyl glyceryl ethers, esters, silicones, and the like. Specific examples of the hydrocarbon include liquid paraffin, ozokerite, ceresin, paraffin, polyethylene powder, petrolatum and the like. Specific examples of the fats and oils include various vegetable fats and oils such as olive oil and various animal fats and oils such as beef tallow. Specific examples of waxes include beeswax, candelilla wax, carnauba wax, jojoba oil, lanolin, and the like. Specific examples of the higher fatty acid include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, hydroxystearic acid, oleic acid and the like. Specific examples of the alkyl glyceryl ether include batyl alcohol (monostearyl glyceryl ether), chimyl alcohol (monocetyl glyceryl ether), ceralkyl alcohol (monooleyl glyceryl ether), isostearyl glyceryl ether, and the like. Specific examples of the esters include diisopropyl adipate and isopropyl myristate. Specific examples of silicones include dimethylpolysiloxane, methylphenylpolysiloxane, methylcyclopolysiloxane, polyether-modified silicone, amino-modified silicone, betaine-modified silicone, alkyl-modified silicone, and alkoxy-modified silicone.

  A polyhydric alcohol is mix | blended as a solubilizer of said (b) direct dye. Specific examples of the polyhydric alcohol include glycols and glycerins. Examples of glycols include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, isoprene glycol, and 1,3-butylene glycol. Examples of glycerins include glycerin, diglycerin, and polyglycerin.

  Furthermore, as other components, antiseptics such as parabens, chelating agents such as EDTA-2Na, stabilizers such as phenacetin, 8-hydroxyquinoline, acetanilide, sodium pyrophosphate, barbituric acid, uric acid, tannic acid, plant extracts, Herbal medicine extracts, vitamins, fragrances, ultraviolet absorbers and the like may be blended.

<Mixture (hair treatment agent)>
By mixing and preparing the hair treatment first agent and the hair treatment second agent at a predetermined ratio so as to have the above-mentioned blending amount, (a) an oxidative dye reducing agent and (b) A desired hair treatment agent in which a direct dye is dissolved can be obtained. This hair treatment agent is applied to hair dyed with a hair dye composition containing an oxidative dye. In addition, the dosage form of the hair treatment agent is liquid such as emulsified liquid, aqueous solution, dispersed liquid, or gel. The hair treatment agent can be applied to the hair by applying it to an applicator such as a brush or a comb. At this time, since the operability of the hair treatment agent can be sufficiently exhibited, it is preferably applied to the hair using a brush.

Next, the hair dye composition used in this embodiment will be described.
The hair dye composition comprises a hair dye first agent (hereinafter referred to as hair dye first agent) and a hair dye second agent (hereinafter referred to as hair dye second agent). The hair dye first agent contains an oxidative dye, an alkali agent and the like, and the hair dye second agent contains an oxidant and the like.

<Hair dyeing first agent>
The oxidative dye indicates a compound capable of developing color by oxidative polymerization with an oxidant mixed in the second dyeing agent, and is specifically classified into a main intermediate and a coupler. As the main intermediate, for example, a compound having an amino group is used. Specific examples thereof include toluene-2,5-diamine, p-phenylenediamine, N-phenyl-p-phenylenediamine, 4,4′-diaminodiphenylamine, p-aminophenol, o-aminophenol, p-methylamino. Phenol, N, N-bis (2-hydroxyethyl) -p-phenylenediamine, 2-hydroxyethyl-p-phenylenediamine, o-chloro-p-phenylenediamine, 4-amino-m-cresol, 2-amino- At least one selected from 4-hydroxyethylaminoanisole, 2,4-diaminophenol and salts thereof is preferable. These main intermediates may be blended singly or in combination of two or more.

  As couplers, 2,6-diaminopyridine, 5-amino-o-cresol, m-aminophenol, 5- (2-hydroxyethylamino) -2-methylphenol, m-phenylenediamine, 2,4-diaminophenoxyethanol , Toluene-3,4-diamine, diphenylamine, N, N-diethyl-m-aminophenol, phenylmethylpyrazolone and salts thereof are preferred. These couplers may be blended singly or in combination of two or more.

  Since this oxidation dye can be changed to various color tones, it is preferably composed of at least one selected from main intermediates and at least one selected from couplers.

  0.001-6 mass% is preferable and, as for content of the oxidation dye in a hair dye mixture, 0.01-4 mass% is especially preferable. If the content is less than 0.001% by mass, sufficient dyeability may not be obtained. On the other hand, even if it exceeds 6 mass%, the dyeability is not improved and it is not economical.

In addition, direct dyes and the like can be appropriately blended as oxidation dyes and dyes other than oxidation dyes listed in the “Quasi-drug raw material standards” (issued in June 1991, Yakuji Nippo).
The alkaline agent is blended to promote the action of the oxidizing agent blended in the hair dyeing second agent and to improve the dye penetration into the hair by swelling the hair and to improve the dyeability. Specific examples of the alkali agent include ammonia, alkanolamine, ammonium salt, organic amines (2-amino-2-methyl-1,3-propanediol, guanidine, etc.), inorganic alkali (sodium hydroxide, potassium hydroxide, Sodium carbonate, potassium carbonate, etc.), basic amino acids (arginine, lysine, etc.) and their salts. These alkaline agents may be blended singly or in combination of two or more.

  In this first hair dyeing agent, other components such as oily components and surfactants described in the second hair treatment agent constituting the hair treating agent can be appropriately blended. In addition, the hair dye composition containing the oxidative dye is a reducing agent so that when the oxidative dye is oxidatively polymerized by the oxidant, a polynuclear compound having a low polymerization rate that is easily decolored by the hair treatment agent is generated. It is preferable that a polymerization inhibitor such as certain ascorbic acids or sulfites is blended.

The dosage form of the first hair dyeing agent is not particularly limited, such as a liquid such as an aqueous solution, a dispersion or an emulsion, a gel, a foam or a cream.
<Hair dyeing second agent>
This hair dye second agent contains an oxidizing agent. Moreover, this hair dye 2nd agent contains the component normally used for the hair dye 2nd agent of an oxidation hair dye as another component.

  The oxidizing agent is blended to decolorize melanin contained in the hair and to oxidize and color the oxidizing dye blended in the first hair dyeing agent. Specific examples of the oxidizing agent include hydrogen peroxide, potassium bromate, sodium bromate, sodium perborate and the like.

  Other components described in the first hair dyeing agent can be appropriately mixed with the second hair dyeing agent. Further, when hydrogen peroxide is blended as an oxidizing agent, it is preferable to blend a stabilizer in order to suppress decomposition of hydrogen peroxide. Specific examples of this stabilizer include sodium stannate, urea, phenacetin, ethylene glycol phenyl ether, 8-oxyquinoline, phosphoric acid and the like. The dosage form of the second hair dyeing agent is not particularly limited, such as a liquid such as an aqueous solution, a dispersion, or an emulsion, a gel, a foam, and a cream.

<Hair dye mixture>
When using the hair dye composition, a hair dye mixture can be obtained by mixing and preparing the above-mentioned first hair dye agent and second hair dye agent in a predetermined ratio. The dosage form of this hair dye mixture is not particularly limited, such as liquid, cream, gel, and foam.

Next, the operation of the hair treatment agent of this embodiment will be described.
First, a hair dyeing treatment is performed by applying to the hair a hair dye mixture prepared by mixing and preparing the first hair dye agent and the second hair dye agent. The hair treatment agent of this embodiment is applied to hair dyed by color development of a polynuclear compound generated by oxidative polymerization of such an oxidative dye.

  Now, the first hair treatment agent and the second hair treatment agent in which each component is prepared are filled in separate containers and stored until use. In use, the hair treatment agent is prepared by mixing the first hair treatment agent and the second hair treatment agent. Next, the hair treatment agent is applied to the hair dyed by color development of the polynuclear compound produced by oxidative polymerization of the oxidative dye using an applicator such as a brush or a comb. At that time, the polynuclear compound dyeing the hair is depolymerized (decomposed) or made non-resonant by the reducing action of (a) the oxidative dye reducing agent. As a result, the dyed hair is destained.

  Next, simultaneously with the destaining, (b) the direct dye that is blended in the hair treatment agent develops color, so that the destained hair is dyed again. At that time, since (b) the direct dye is not reactive, (a) it is not affected by the oxidative dye reducing agent, and it develops color itself. For this reason, in the hair treatment agent of this embodiment, (b) the effect of a direct dye is exhibited suitably and sufficient hair dyeing | staining processing is performed with respect to the hair discolored by de-dying.

The effects exhibited by the above embodiment will be described below.
(1) The hair treatment agent of the present embodiment comprises: (a) a hair treatment first agent containing an oxidative dye reducing agent as an essential component; and (b) a hair treatment second agent containing a direct dye as an essential component. Composed. And, when this hair treatment agent is applied to hair dyed with an oxidative dye, the polynuclear compound dyeing the hair is depolymerized (decomposed) or non-resonated by the reducing action of (a) the oxidative dye reducing agent, Hair is destained. At the same time, the destained hair can be dyed again by the direct dye (b) blended in the hair treatment agent. That is, in this embodiment, when the dyed hair is destained and then re-dyed to another color tone, the destaining process and the hair dyeing process can be performed in one step. As a result, in this embodiment, the work process can be simplified and the work time can be shortened compared to the conventional method that requires two processes of a decoloring process using a decoloring agent and a hair dyeing process using a hair dye. Can do.

(2) (b) The direct dye is preferably an acid dye. According to this, a sufficient hair dyeing effect can be exhibited under an acidic region.
(3) (a) As the oxidizing dye reducing agent, ascorbic acids are preferred. According to this, the action of depolymerizing or non-resonating a polynuclear compound having a low polymerization rate can be suitably exhibited.

  (4) The hair treatment agent of this embodiment preferably contains (c) a hair penetrating agent. According to this, the permeability of both (a) the oxidative dye reducing agent and (b) the direct dye into the hair can be improved. Moreover, as this type of (c) hair penetrant, aromatic alcohol is preferable from the viewpoint of easy availability and (b) direct dye penetration into the hair, while being easy to obtain. Particularly preferred is at least one of benzyl alcohol and benzyloxyethanol.

  (5) It is preferable that pH of the hair treatment agent of this embodiment is 1-5. According to this, there is almost no possibility of hurting the hair and scalp, and (b) the sufficient hair dyeing effect of the direct dye can be suitably exhibited.

In addition, you may change the said embodiment as follows.
-In this embodiment, the hair treatment agent was applied to hair. However, you may use this hair treatment agent as a fiber treatment agent applied to the other fiber which can be dye | stained with oxidative dyes, such as human hair other than hair, wool, and feathers. Even in such a case, the same effect as the present embodiment can be obtained.

In the present embodiment, the hair treatment agent is configured as the first hair treatment agent and the second hair treatment agent, and is mixed immediately before use . Et al of the components constituting the hair treatment first agent and the hair treated second agent of the present embodiment arbitrarily divided, may be configured in three or more-part.

  -In this embodiment, the hair dye composition was comprised as the hair dye 1st agent and the hair dye 2nd agent, and it was set as the structure mixed just before use. However, each component constituting the first hair dyeing agent and the second hair dyeing agent may be separated into three or more agents. For example, the hair dye composition which consists of the hair dye 1 agent which mix | blends oxidation dye, the hair dye 2 agent which mix | blends an alkaline agent, and the hair dye 3 agent which mix | blends an oxidizing agent is mentioned. In such a configuration, the oxidation dye is configured separately from the second dyeing agent in which an alkaline agent is blended, so that the storage stability of the oxidation dye can be enhanced. Moreover, you may comprise as 1 agent type which mixes and prepares all the components which comprise a hair dye composition just before use.

Next, the technical idea that can be grasped from the above embodiment will be described below.
A fiber treatment set comprising the fiber treatment agent and a hair dye composition containing an oxidative dye.

Next, the embodiment will be described more specifically with reference to examples and comparative examples.
(Examples 1-3, Comparative Examples 1-4)
Here, first, each component shown in Table 1 is mixed to prepare a hair dyeing first agent and a hair dyeing second agent, and these are mixed and prepared at a mass ratio of 1: 1 to obtain a hair dye composition. It was. The hair dye composition obtained here was applied to a human hair bundle of medium brown hair (hereinafter simply referred to as a hair bundle) using a brush and allowed to stand at room temperature for 30 minutes. Next, the hair dye composition adhering to the hair bundle was washed away with water, and then shampooed twice and rinsed once. Subsequently, the hair bundle was dried with warm air and then left for one day. At that time, the hair bundle is dyed black. In addition, the unit of the numerical value which shows the mixing | blending of each component in Table 1 is the mass%.

その後、表２に示す各成分を混合して毛髪処理第１剤及び毛髪処理第２剤を調製し、これらを毛髪処理第１剤：毛髪処理第２剤＝１：１０の質量割合で混合調製することで毛髪処理剤を得た。そして、ここで得られた毛髪処理剤を、上記染毛処理が施された毛束に刷毛を用いて塗布し、室温にて３０分間放置した。次に、毛束に付着した毛髪処理剤を水で洗い流した後、シャンプーを２回、リンスを１回施した。続いて、毛束を温風で乾燥した。そして、毛束が、毛髪処理剤中の（ｂ）直接染料に起因した所定の色調に染色されているか否かを目視により評価した。その結果を表２に示す。なお、表２における各成分の配合を示す数値の単位は質量％である。

Thereafter, each component shown in Table 2 is mixed to prepare a hair treatment first agent and a hair treatment second agent, and these are mixed and prepared at a mass ratio of hair treatment first agent: hair treatment second agent = 1: 10. As a result, a hair treatment agent was obtained. And the hair treatment agent obtained here was apply | coated to the hair | bristle bundle which the said hair dyeing process was performed using a brush, and it was left to stand for 30 minutes at room temperature. Next, the hair treatment agent adhering to the hair bundle was washed away with water, and then shampooed twice and rinsed once. Subsequently, the hair bundle was dried with warm air. Then, it was visually evaluated whether or not the hair bundle was dyed in a predetermined color tone caused by (b) the direct dye in the hair treatment agent. The results are shown in Table 2. In addition, the unit of the numerical value which shows the mixing | blending of each component in Table 2 is the mass%.

表２から明らかなように、実施例１〜３の毛髪処理剤においては、（ａ）酸化染料還元剤の還元作用により脱染処理が好適に施されるうえ、その脱染処理が施された毛束に対し（ｂ）直接染料が作用して所定の新たな色調に染毛されていることが確認された。

As is apparent from Table 2, in the hair treatment agents of Examples 1 to 3, (a) the decolorization treatment was suitably performed by the reducing action of the oxidative dye reducing agent, and the decoloration treatment was performed. It was confirmed that (b) the dye acts directly on the hair bundle and the hair is dyed in a predetermined new color tone.

  On the other hand, Comparative Example 1 was a mere conventional decoloring treatment, and the color tone of the hair bundle was the color tone (brown) before the hair dyeing treatment was performed using the hair dye composition. That is, regarding the hair treatment agent of Comparative Example 1, (a) the oxidation dye reducing agent is blended, but (b) the color tone of the hair bundle is removed because the direct dye is not blended. No further hair dyeing treatment is applied to the hair bundle. That is, in order to obtain a desired color tone, it is necessary to perform further hair dyeing work. Further, in the hair treatment agents of Comparative Examples 2 to 4, (a) the color tone of the hair bundle dyed with the oxidation dye without being subjected to the decoloring treatment due to the absence of the oxidation dye reducing agent ( Black) could not be removed. As described above, it is obvious that even if the hair bundle is simply subjected to the hair dyeing process using (b) the direct dye without performing the destaining treatment, the hair cannot be dyed in a desired color tone.

Claims (5)

A fiber treatment agent applied to a fiber dyed by color development of a polynuclear compound produced by oxidative polymerization of an oxidative dye,
(A) ascorbic acid as an oxidizing dye reducing agent and (b) an acid dye as a direct dye,
The ascorbic acids include ascorbic acid and its salt, erythorbic acid and its salt, disodium ascorbate sulfate, disodium erythorbate sulfate, magnesium ascorbate phosphate, ascorbyl palmitate, ascorbyl stearate, ascorbyl dipalmitate , Ascorbyl tetra-2-hexyldecanoate, ascorbyl myristate, ascorbyl laurate, ascorbyl acetate, ascorbyl propionate, ascorbyl tartrate, ascorbyl citrate, ascorbyl succinate, ascorbyl benzoate, (ascorbyl / tocopheryl) potassium phosphate, ascorbyl ethyl, Ascorbic acid allantoin, ascorbic acid chitosan, ascorbic acid methylsilanol, tetradecylhexyl Ascorbyl, aminopropyl ascorbyl phosphate, ascorbic acid poly peptides, ascorbyl glucoside, and are at least one selected from ascorbyl methylsilanol pectinate,
(A) a fiber treatment first agent containing an oxidizing dye reducing agent, and (b) a fiber treatment second agent containing a direct dye,
In the fiber treatment agent, fiber treatment agent characterized the (a) to have free 1-40 wt% oxidation dye reducing agent.   The fiber treatment agent according to claim 1, further comprising (c) a fiber penetrant.   The fiber treatment agent according to claim 2, wherein the fiber penetrant (c) is an aromatic alcohol.   The fiber treatment agent according to claim 2 or 3, wherein (c) the fiber penetrant is at least one of benzyl alcohol and benzyloxyethanol. The fiber treatment agent according to any one of claims 1 to 4, wherein a pH at the time of mixing the fiber treatment first agent and the fiber treatment second agent is 1 to 5.